springboot项目添加log4j2日志

傷城~ 2024-03-24 14:42 70阅读 0赞

### 添加依赖 ###

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>
    
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>

--------------------

### 引入log4j2.xml 文件 ###

<?xml version="1.0" encoding="UTF-8"?>
    <configuration status="info" monitorInterval="10">
    
        <properties>
            <property name="LOG_HOME">./applog/logs</property>
            <Property name="FILE_NAME" value="practisesvr"/>
            <Property name="LOG_PATTERN" value="[%d{yyyy-MM-dd HH:mm:ss}] [%-5level] [%thread] [%file:%line] → [%enc{%m}{CRLF}]%n"/>
        </properties>
    
        <appenders>
            <console name="CONSOLE" target="SYSTEM_OUT">
                <PatternLayout pattern="${LOG_PATTERN}"/>
                <Filters>
                    <ThresholdFilter level="error" onMatch="DENY" onMismatch="NEUTRAL"/>
                    <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
                </Filters>
            </console>
    
            <File name="LOG_FILE"
                  fileName="${LOG_HOME}/appendLog.log"
                  append="true">
                <PatternLayout pattern="${LOG_PATTERN}"/>
                <ThresholdFilter level="WARN" onMatch="ACCEPT" onMismatch="DENY"/>
            </File>
    
            <RollingFile name="SIZE_BASED_TRIGGERING"
                         fileName="${LOG_HOME}/${FILE_NAME}.log"
                         filePattern="${LOG_HOME}/${FILE_NAME}_%d{yyyy-MM-dd-HH}_%i.log.gz"
                         createOnDemand="true">
                <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
                <PatternLayout pattern="${LOG_PATTERN}"/>
                <Policies>
                    <SizeBasedTriggeringPolicy size="10K"/>
                </Policies>
                <DefaultRolloverStrategy fileIndex = "nomax">
                    <Delete basePath="${LOG_HOME}" maxDepth="2">
                        <IfFileName glob="*.log.gz">
                            <IfAny>
                                <IfAccumulatedFileSize exceeds="100M"/>
                                <IfAccumulatedFileCount exceeds="100"/>
                                <IfLastModified age="30d"/>
                            </IfAny>
                        </IfFileName>
                    </Delete>
                </DefaultRolloverStrategy>
            </RollingFile>
        </appenders>
    
        <loggers>
            <root level="all">
                <AppenderRef ref="CONSOLE"/>
                <AppenderRef ref="SIZE_BASED_TRIGGERING"/>
                <AppenderRef ref="LOG_FILE"/>
            </root>
        </loggers>
    </configuration>

--------------------

### 引入测试类 ###

import lombok.extern.log4j.Log4j2;
    
    @Log4j2
    public class Log4jTest {
        
        public static void main(String[] args) throws InterruptedException {
        
            int i = 1;
            while (true) {
        
                Thread.sleep(1000);
                log.trace("这是测试trace" + i);
                log.debug("这是测试debug" + i);
                log.info("这是测试info" + i);
                log.warn("这是测试warn" + i);
                log.error("这是测试error" + i);
                log.fatal("这是测试fatal" + i);
                i++;
            }
        }
    }

--------------------

### 测试结果 ###

> ![在这里插入图片描述][29e9b40645ac448296d20a39473273cf.png]

[29e9b40645ac448296d20a39473273cf.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/b404fdfb5f154b41aaf9e61803aa568b.png